Turns out that where i live is in a micro climate, from the BBC
Sandy soils in the Breckland region of south Norfolk can also lead to extremes in soil temperature.
Due to the tendency for those soils to be free draining, it heats up significantly in the day and cools
down dramatically at night, which leads to a rather extreme temperature range.
Indeed the area around Thetford has as many ground frosts as much of Scotland!
This may explain the slightly higher temps lower to the ground opposed to the higher mounted sensors
during the afternoon
This also my explain as to why my low temp this morning was 16.2 and local station was at 18.7
I have 2 external temps and both reading the same
This temp difference is why i have been removed, once again, from wundermap, awaiting a response from them
I get much the same thing here in the States in Ohio. My station is located on a valley floor with the valley running approx. north/south. In calm weather I get pooling of cooler air here at night along with abrupt changes in wind direction in the mornings and evenings (NW at night, SE during the day). Consequently, Wunderground and CWOP see this as temperature errors, so at night may station disappears from the Map on calm nights and CWOP shows a list of temperature “errors” at night. Quite a quandary, but our temperatures are what they are…
WU has QC controls??? WOW, who knew.
I’ve reported numerous Neat-a-mo stations around me for absurdly high temp readings. Yet, they remain being reported by WU.
The dumb Bloomsky station 2 miles from me was 15 degree’s higher then everyone else couple of hours ago. Yet it remains on WU.
Jeff Master’s should be ashamed.
As I feared, it’s went done the tubes since NBC/Comcast bought Weather Channel, then WC took over WU.
We have one in Minnesota called Embarrass, MN. In winter they are the coldest spot in the state since it is surrounded by hills and cold air sinks. They also believe there is a link between corn fields and Tornadoes due the amount of moist released by corn husk.